Question

to prepare colloidal solution paste of stars is added to hot water while Aluminium is added to water at room temperature. give reason​

Answer 1

Answer:

In cold water the colloids are not soluble. But they are soluble in hot water. So they are added to hot water to form a colloidal solution. They are added together in room temperature because in the room temperature they are colloidal.

Explanation:

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Answer 2

Answer:

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